#537FF0#537FF0

#537FF0 is a light, vivid blue. Relative luminance 0.233; OKLCH L 62.3% C 0.176 H 265.6°. Best body text is #000000 at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#537FF0
RGB	rgb(83, 127, 240)
HSL	hsl(223, 84%, 63%)
HSV	hsv(223, 65%, 94%)
CMYK	cmyk(65.4%, 47.1%, 0%, 5.9%)
CIE-LAB	lab(55.39, 20.49, -61.44)
CIE-LCH	lch(55.39, 64.76, 288.45°)
OKLab	oklab(62.26% -0.0137 -0.1759)
OKLCH	oklch(62.26% 0.176 265.6)
XYZ	xyz(26.8794, 23.3065, 85.5032)
Luminance	0.2331 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537FF0 #F0C453

analogous

#53CDF0 #537FF0 #7553F0

triadic

#537FF0 #F0537F #7FF053

tetradic

#537FF0 #F053CD #F0C453 #53F075

square

#537FF0 #F053CD #F0C453 #53F075

split-complementary

#537FF0 #F07553 #CDF053

monochromatic

#103FB9 #1B55EB #537FF0 #8BA9F5 #C4D3FA

Accessibility & contrast

On white

3.71

#537FF0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.66

#537FF0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537FF0

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537FF0	#FFFFFF	#000000	##000000
##537FF0	1.00	3.71	5.66	5.66
#FFFFFF	3.71	1.00	21.00	21.00
#000000	5.66	21.00	1.00	1.00
##000000	5.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#448CF4

Deuteranopia (green-blind)

#227EEE

Tritanopia (blue-blind)

#0099AC

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #537ff0;
/* rgb */ color: rgb(83, 127, 240);
/* oklch */ color: oklch(62.3% 0.176 265.6);

Tailwind

colors: {
  custom: {
    50: '#93a3f6',
    500: '#537ff0',
    950: '#000000',
  },
}

SCSS

$custom: #537ff0;
$custom-light: #93a3f6;
$custom-dark: #000000;

JSON

{
  "hex": "#537ff0",
  "rgb": {
    "r": 83,
    "g": 127,
    "b": 240
  },
  "hsl": {
    "h": 223.185,
    "s": 83.957,
    "l": 63.333
  },
  "oklch": {
    "l": 0.62259,
    "c": 0.17646,
    "h": 265.6
  },
  "luminance": 0.23309
}

Semantic roles & 50–950 ramp

primary

#537FF0

secondary

#EBDCB3

accent

#A305E0

background

#F9FAFF

surface

#F2F3FE

border

#CCCDD6

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #537FF0

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →